CA2410363C - The production of dicalcium phosphate or monocalcium phosphate - Google Patents

The production of dicalcium phosphate or monocalcium phosphate Download PDF

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Publication number
CA2410363C
CA2410363C CA2410363A CA2410363A CA2410363C CA 2410363 C CA2410363 C CA 2410363C CA 2410363 A CA2410363 A CA 2410363A CA 2410363 A CA2410363 A CA 2410363A CA 2410363 C CA2410363 C CA 2410363C
Authority
CA
Canada
Prior art keywords
phosphate
calcium
solution
precipitate
dicalcium phosphate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA2410363A
Other languages
English (en)
French (fr)
Other versions
CA2410363A1 (en
Inventor
Jan Christoffel De Waal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2410363A1 publication Critical patent/CA2410363A1/en
Application granted granted Critical
Publication of CA2410363C publication Critical patent/CA2410363C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
    • C01B25/328—Defluorination during or after the preparation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials For Medical Uses (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Removal Of Specific Substances (AREA)
  • Dental Preparations (AREA)
  • Manufacture And Refinement Of Metals (AREA)
CA2410363A 2000-05-26 2001-04-04 The production of dicalcium phosphate or monocalcium phosphate Expired - Fee Related CA2410363C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ZA20002638 2000-05-26
ZA200002638A ZA200002638B (en) 2000-05-26 2000-05-26 The production of dicalcium phosphate or monocalcium phosphate.
PCT/IB2001/000559 WO2001089990A1 (en) 2000-05-26 2001-04-04 The production of dicalcium phosphate or monocalcium phosphate

Publications (2)

Publication Number Publication Date
CA2410363A1 CA2410363A1 (en) 2001-11-29
CA2410363C true CA2410363C (en) 2011-03-29

Family

ID=25588762

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2410363A Expired - Fee Related CA2410363C (en) 2000-05-26 2001-04-04 The production of dicalcium phosphate or monocalcium phosphate

Country Status (12)

Country Link
US (1) US7101522B2 (no)
EP (1) EP1289882B1 (no)
AT (1) ATE300500T1 (no)
AU (1) AU4444801A (no)
BR (1) BR0111484B1 (no)
CA (1) CA2410363C (no)
DE (1) DE60112289D1 (no)
IL (2) IL153057A0 (no)
MX (1) MXPA02011684A (no)
NO (1) NO20025688L (no)
WO (1) WO2001089990A1 (no)
ZA (1) ZA200002638B (no)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003219415A1 (en) * 2002-03-21 2003-10-08 Sap Aktiengesellschaft Synchronizing users on shared data with locks
US7133878B2 (en) * 2002-03-21 2006-11-07 Sap Aktiengesellschaft External evaluation processes
US20030182167A1 (en) * 2002-03-21 2003-09-25 Wolfgang Kalthoff Goal management
US7236973B2 (en) * 2002-11-27 2007-06-26 Sap Aktiengesellschaft Collaborative master data management system for identifying similar objects including identical and non-identical attributes
US20040044730A1 (en) * 2002-09-03 2004-03-04 Holger Gockel Dynamic access of data
US7509326B2 (en) * 2002-09-03 2009-03-24 Sap Ag Central master data management
US8438238B2 (en) 2002-10-16 2013-05-07 Sap Ag Master data access
US8061604B1 (en) 2003-02-13 2011-11-22 Sap Ag System and method of master data management using RFID technology
US7272776B2 (en) * 2003-12-30 2007-09-18 Sap Aktiengesellschaft Master data quality
US20050149474A1 (en) * 2003-12-30 2005-07-07 Wolfgang Kalthoff Master data entry
PL3665124T3 (pl) * 2017-08-11 2022-01-31 Prayon S.A. Sposób kwasowego roztwarzania źródła fosforanowego
CN110078039B (zh) * 2019-06-04 2023-09-22 瓮福（集团）有限责任公司 一种低浓度含磷废水梯级制取饲料级磷酸氢钙的方法及装置
US11560310B1 (en) 2022-02-11 2023-01-24 Jesa Technologies Llc Method for producing a calcium phosphate salt
CN114524545A (zh) * 2022-03-03 2022-05-24 盛隆资源再生（无锡）有限公司 一种含硫酸钠废水回收利用的方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US852372A (en) 1903-10-13 1907-04-30 Eugen Bergmann Method of producing dicalcium phosphate.
US1788952A (en) 1927-04-21 1931-01-13 Theodore V D Berdell Process for the commercial production of di-calcium phosphate
US2728635A (en) 1951-07-16 1955-12-27 Chemical Foundation Inc Production of feed grade dicalcium phosphate
FR1128581A (fr) * 1954-04-21 1957-01-08 Int Minerals & Chem Corp Perfectionnements à un procédé d'obtention d'un produit phosphatique
FR1128591A (fr) 1955-04-20 1957-01-08 Procédé de cintrage de tubes et machine pour la mise en oeuvre de ce procédé
BE568197A (no) * 1957-06-12
US2882127A (en) * 1958-05-14 1959-04-14 Int Minerals & Chem Corp Granular dicalcium phosphate product and method for the production thereof
US3151938A (en) 1961-04-25 1964-10-06 Int Minerals & Chem Corp Phosphatic materials and methods for the production thereof
US3391993A (en) 1965-03-18 1968-07-09 Diamond Shamrock Corp Method for preparing feed grade dicalcium phosphate
US4012491A (en) 1971-10-19 1977-03-15 United States Gypsum Company Phosphate process
US3843767A (en) * 1972-03-27 1974-10-22 Du Pont Process for treating fluophosphate ores
US4222990A (en) * 1974-10-07 1980-09-16 Pennzoil Company Production of fluoride-free phosphates
CA1034738A (en) 1974-10-25 1978-07-18 United States Gypsum Company Chemical leach of phosphate values from phosphatic minerals
US4160657A (en) * 1978-01-19 1979-07-10 Pennzoil Company Preparation of monocalcium phosphate and phosphoric acid
US4435370A (en) * 1981-09-29 1984-03-06 Pennzoil Company Preparation of monocalcium phosphate and/or phosphoric acid from phosphate rock
NZ204113A (en) * 1982-05-05 1985-08-16 Commw Scient Ind Res Org Recovery of phosphate values from phosphate ore
US5180569A (en) * 1990-12-31 1993-01-19 Phosphate Engineering And Construction Company Process for the production of phosphoric acid and hydrogen fluoride from phosphate rock and fluosilicic acid
US6676914B1 (en) * 2000-06-09 2004-01-13 Hf Extraction, Llc Phosphate acidulation utilizing HF acid
US6562308B1 (en) * 2000-11-15 2003-05-13 Agrium, Inc. Process for the recovery of phosphate from phosphate rock

Also Published As

Publication number Publication date
ATE300500T1 (de) 2005-08-15
BR0111484B1 (pt) 2010-09-21
NO20025688D0 (no) 2002-11-26
DE60112289D1 (de) 2005-09-01
MXPA02011684A (es) 2004-05-17
US20030161778A1 (en) 2003-08-28
BR0111484A (pt) 2004-01-06
WO2001089990A1 (en) 2001-11-29
IL153057A0 (en) 2003-06-24
ZA200002638B (en) 2001-01-31
CA2410363A1 (en) 2001-11-29
IL153057A (en) 2006-08-01
EP1289882B1 (en) 2005-07-27
AU4444801A (en) 2001-12-03
US7101522B2 (en) 2006-09-05
EP1289882A1 (en) 2003-03-12
NO20025688L (no) 2003-01-23

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Effective date: 20150407